Designing DNS Domains

Now that you know the components of DNS and how they function, you're ready to design your own DNS system. Like all distributed network functions, your major goals are unbroken continuity of service, fast performance, minimum network traffic across the WAN, strong security, and a reasonably small need for administrative attention. We've already seen how primary and secondary DNS servers can be distributed to provide fault tolerance. This section covers these additional DNS features:

  • Zone replication

  • Using forwarders

  • Deploying into an existing DNS infrastructure

  • WINS forwarding

  • Dynamic zone updates

  • Automated database scavenging

  • Active Directory integration

  • Secure DNS Updates

We'll take a look at each of these features from the viewpoint ...

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